docs: remove out-of-date sections

[sbose78]

Signed-off-by: Shoubhik Bose [email protected]

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[sbose78]

partially takes care of #218

[alexmt]

LGTM. Thank you!

[codecov]

Codecov Report

Merging #248 (1b5af32) into master (380f7be) will decrease coverage by 1.02%.
The diff coverage is 14.81%.

❗ Current head 1b5af32 differs from pull request most recent head 767a9be. Consider uploading reports for the commit 767a9be to get more accurate results

@@            Coverage Diff             @@
##           master     #248      +/-   ##
==========================================
- Coverage   50.90%   49.87%   -1.03%     
==========================================
  Files          40       40              
  Lines        3096     3186      +90     
==========================================
+ Hits         1576     1589      +13     
- Misses       1361     1437      +76     
- Partials      159      160       +1     

Impacted Files	Coverage Δ
pkg/sync/common/types.go	58.82% <ø> (ø)
pkg/utils/kube/ctl.go	2.24% <0.00%> (-0.58%)	⬇️
pkg/sync/sync_context.go	71.97% <70.00%> (+0.03%)	⬆️
pkg/health/health_hpa.go	82.66% <100.00%> (+0.47%)	⬆️

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